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Newtonian mechanics discusses the movement of classical bodies under the influence of forces by applying Newton’s three laws. For more general concepts, use [classical-mechanics]. For Newton’s description of gravity, use [newtonian-gravity].

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Determine velocity if ratio of force acting when car goes down the valley and up the hill is...

I have problem from schoolbook. My solution differes from the solution in the book. Is there an error in the book or am I wrong? Problem: A car drives up the hill and then down into a cavity. Both the …
Alex Alex's user avatar
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0 votes
1 answer
2k views

Force acting on parallel and in series springs [closed]

How to prove from Newton laws that same force acts on both springs that are connected in series and it is equal to the total force? How to prove from Newton laws that total force acting on parallel c …
Alex Alex's user avatar
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2 votes
2 answers
561 views

Why do centrifugal force and centripetal acceleration have opposite signs?

I know that rotating body has centripetal acceleration that is directed to the center of rotation. $$a_{cp}=-\frac{v^2}{R}$$ (Lets imagine that body is located at 12 o'clock and that Ox axis is pointe …
Alex Alex's user avatar
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